<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="../src/utils-dom.js"></script>
</head>
<body>

<div id="test1" class="test1 test2"></div>

<script>
    var test1 = document.querySelector('#test1');
    var result = org.util.hasClass(test1, 'test');
    console.log(result);
    var result2 = org.util.hasClass(test1, 'test1');
    console.log(result2);

    org.util.addClass(test1, 'test3 test4');
    org.util.removeClass(test1, 'test1 test2');
</script>
</body>
</html>